body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.ad-container {
    position: relative;
    overflow: hidden;
    height: 0;
    transition: height 1s ease-in-out;
}

.ad-container img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.hide-ad-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.8);
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
}

.hide-ad-btn:hover {
    background-color: rgba(255, 255, 255, 1);
}

.content {
    padding: 20px;
}